REVIEWS AND BOOK NOTICES. 295. 
and two rows of small yellow spots along the side. It is often at- 
tacked by Tachina flies. 
The concluding chapter on ‘“‘Two of our Common Butterflies 
(Danais archippus and Limenitis disippus) ; their natural history, 
with some general remarks on Transformation and Protective Imita- 
tion as illustrated by them,” will interest all naturalists, especially 
those who have studied cases of mimicry. 
Ponp Lire.*—There is not much to be said about this exquisite 
little book; the best thing to do about it is to read it. As its 
title states, it is a new edition of a familiar work by the present 
able Secretary of the “ Royal Microscopical Society.” Its author- 
ship would be a sufficient guarantee of its scientific accuracy, but 
not of its general excellence in other respects; for few men, 
whether eminent or not, could prepare a volume containing so 
much to commend and so little to regret. 
With the exception of an initial chapter devoted to the appara- 
tus employed, the book is a Natural History work, describing and 
commenting upon the minute living forms which abound in the 
ponds near London. Usually a chapter is given to the work of 
each month in the year ; and an interesting discussion of relations 
Closes the list. The distribution of work through the various 
months would be more applicable to our Southern than to our 
orthern states, but the chief interest of the book is entirely inde- 
pendent of local considerations. 
ritten in a lively and dashing style, though without a touch of 
Sensationism or vulgarity, illustrated with neat and life-like wood 
cuts and dainty colored prints, and presented by the publishers in 
an attractive form, this little gem of a book would be of as much 
interest to a poet or a philosopher as to a naturalist. We advise 
_ very intelligent reader, whether scientific or not, to buy the vol- 
Ume, and read it, and having read it to join with us in wishing that 
the author’s next edition, or next work, may be as good if not as 
8mall.— R. H. W. 
Derr Sga Corars. t — This ae treatise is on the deep- 
‘ea corals collected during the recent expeditions made for the 
oo. 
*Marvels of Pond Life d edition. London: 
: . By Henry J. Slack, F. G. S. Second e 
Groombridge & ons, 1871. : 
X Illustrated Catalogue of the Museum of Comparative Zodlogy. No. iv. s 
"S. ByL.F. de Pourtalès. Cambridge, 1871, large 8vo, with a map and 8 litho- 
Staphic plates, 
